Plot lmList Confidence Intervals

plot.intervals.lmList {nlme}

R Documentation

Plot lmList Confidence Intervals

Description

A Trellis dot-plot of the confidence intervals on the linear model coefficients is generated, with a different panel for each coefficient. Rows in the dot-plot correspond to the names of the lm components of the lmList object used to produce x. The lower and upper confidence limits are connected by a line segment and the estimated coefficients are marked with a "+".

This is based on function dotplot() from package lattice.

Usage

## S3 method for class 'intervals.lmList'
plot(x, xlab = "", ylab = attr(x, "groupsName"),
     strip = function(...) strip.default(..., style = 1),
     ...)

Arguments

`x`	an object inheriting from class `"intervals.lmList"`, representing confidence intervals and estimates for the coefficients in the `lm` components of the `lmList` object used to produce `x`.
`xlab, ylab`	axis labels, each with a sensible default.
`strip`	a `function` or `FALSE`, see `dotplot()` from package lattice.
`...`	optional arguments passed to the `dotplot` function (see above).

Value

a Trellis plot with the confidence intervals on the coefficients of the individual lm components of the lmList that generated x.

Author(s)

José Pinheiro and Douglas Bates bates@stat.wisc.edu

Examples

fm1 <- lmList(distance ~ age | Subject, Orthodont)
plot(intervals(fm1))

[Package nlme version 3.1-139 Index]